When one attempts to deliver a Boston Pancake only to discover that they have diarrhea.
Dude, my chick was totally down for a Boston Pancake, but lost her mind when it turned out to be a Memphis Mudslide!
by P. Niss October 20, 2007
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Molson a brand of beer in Canada also the largest brewer there. Molson Mudslides are when you go out for a cheap drunk and drink draught beer all night, causing you to feel like shit the next day. You go to the washroom sit on the toilet and shotgun the toilet bowl with diarrhea. Thus the Molson Mudslides.
Brandon was broke cause he was inbetween pay days so he drank Molson draught all night long. When he woke up he ran to the toilet and let loose with the Molson Mudslides. We thought he was taking a piss but it was the shits he got from all the cheap beer he had.
by Schwazzy Nutz April 3, 2006
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The term used when one farts into another's drink. Add "double shot" when the fart is a shart.
1. Jocelyn left her drink unattended and Joshua gave it a Mexican Mudslide.

2. While giving Jocelyn a Mexican Mudslide, Joshua sharted and made it a Double-shot!
by JCheyLovesTheRedSox August 18, 2009
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The act of when a Japanese woman has diarrhea and defecates on a smooth surface decline and lets it slide down onto the face of another
I went to the massage parlor and I paid extra for the tokyo mudslide and it gave me pink eye
by Dash916 October 1, 2017
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When you're having sex with your hillbilly girlfriend and try anal for the first time but she never cleans herself and she gives you serious shit dick.
I finally got to have anal sex with my girlfriend and she ended up giving me a hillbilly mudslide. I had to stop right away to take a shower. It was disgusting!
by BagODicks53 March 1, 2017
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Careful preparation is crucial to successful execution of the Mongolian Mudslide:
1. 8 to 12 hours before the planned festivities, the man eats a robust meal consisting of late night taco truck fare, corn nuts drenched in habanero bean dip, cheap beer, and perhaps some questionable sushi from a gas station.
2. Chug a jug of Exlax or similarly aggressive diarrhea inducing agent.

When the time is right, the man straddles the woman’s chest and proceeds to receive a vigorous blow job. When things are heating up, the man unloads his colon with a fury normally reserved for a menacing volcano, evenly across the woman’s chest. The man then turns his attention to titty fucking those now muddy mountains. When the man cums, he is careful to artfully puts some snow on the tops of the two muddy mountains.

With some patience and practice, the Mongolian Mudslide can be a veritable piece of art, so don’t forget to take pictures for the family Holiday card.
Dude, did you see Lester’s photo of his Mongolian Mudslide? It was like a fuckin Bob Ross masterpiece with those happy little teats!
by Moit lives January 28, 2017
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This happens when you leave a windy shit between the breasts of a woman while you straddle her neck for a blowjob. (A close cousin to the Cleveland Steamer.)
Unfortunately this wasn't possible on Ridgly but Baily did well.
by Chester January 11, 2005
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